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Field Description
Kernel module info
Information about kernel modules that had been loaded when the kernel
thread deadloop was detected, including:
• Module name—Kernel module name.
• Module address—Memory address of the module.
Last 5 thread switches
Last five kernel thread switches on the CPU before the kernel thread
deadloop was detected, including kernel thread name and kernel thread
switching time with microsecond precision.
Register content
Register information:
• Reg—Name of a register.
• Val—Value saved in a register.
Dump stack Stack information.
Call trace
Function call stack information, which shows the instruction address of a
called function at each level.
Instruction dump
Instruction code when the kernel thread deadloop was detected.
ffffffff
indicates an illegitimate instruction code.
No information to display No kernel thread deadloop information.
Related commands
reset kernel deadloop
display kernel deadloop configuration
Use display kernel deadloop configuration to display kernel thread deadloop detection
configuration.
Syntax
display kernel deadloop configuration [ slot slot-number [ cpu cpu-number ] ]
Views
Any view
Predefined user roles
network-admin
Parameters
slot slot-number: Specifies an IRF member device by its ID. If you do not specify this option, the
command displays kernel thread deadloop detection configuration for the master device.
cpu cpu-number: Specifies a CPU by its number.
Examples
# Display kernel thread deadloop detection configuration.
<Sysname> display kernel deadloop configuration
Thread dead loop detection: Enabled
Dead loop timer (in seconds): 20
Dead loop core list: 0-1
Dead loop action: Record-only
Threads excluded from monitoring: 1
TID: 15 Name: co0
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